>> certainly we exspend much less energy. we have to look, obesity is the driver for this diabetes, okay? but it's not the only driver. and i think that the fact people are living longer so you can measure it more, a criteria is different, the measurements are different so there are other factors but no doubt diabetes is a main issue. when we gain troll of obesity we will gain control of many other diseases. that's the driver. we have to do something about it. >> the trends we looked at to prepare for the segment also showed some areas of the country affected more so than others. >> the south for certain. and on the other hand states like alaska, they are doing okay. but the south, big, big problem. >> we've improved our ability to detect and diagnose. to some stephen that's a factor? >> absolutely. we can measure it so we can label you as being either diabetes or prediabetes. and it's important to realize it's not one meal, it's a cumulative effect which causes what we call insulin resistance. it's an easy disease ting doug